Chair



Oct. 28, 1930. E, C, HARTER I 1,779,935

CHAIR Filed May 22, 1929 Patented Oct. 28, 1930 UNITED; STATES.

-EVAN c. HARTER, or sTUReEs, MICHIGANQASSIGNOR Tov WILLIAM` sbrnnnis. TRAD;

PATENT oFF-LCE -f INGAS DO/MORECHAIRGOMPANY, CFV-ELKHART, INDIANA i f y 4enana Agipiiqa'ion mednay 22,

This Vinvention relates to improvementsvin chairs andit consists of the mattershereinafter described and more particularly pointed f out inthe appended'claims.

The chair with which my invention is particularlyconcerned includes a seat and a back rest adjustable thereon by means ot` supporty ing arms andbracesconnecting the arms to fas the seat. In such a chair the objection has been'to the manner of adjustably securing the Ybraces with' respect to the seat, mainly because of the tinierequii'ed for making such anadjustment which necessitates the complete removal of' a screw from one of a set #of holes to another one in said'set; f

' Tlieprimary object of the invention is to provide l*a* simple improvedk means' whereby i the bracearmsmay be `quickly and easilyadjusted wit-h respect to theseat and this with only the loosening of the associated screws insteadk of lthe completek removal of said screws as heretofore,

f yi/ tr'iother objectof the inventionris to Ypro-V Y vide in a chair yof this kindastructnre where `toa flange fixed With'respectto' the seat, by

in one end of eachfb'race'is adjustably secured means of a runner '-or Clamping nut slidable in a slotin said flange and operable to sev curely hold said screwsin notches or recessesl `30 opening into one'side'ofsaid slot. Y

The -above mentioned obj ectsA of the invention as Well as others'together with the many advantages thereof will more fully appear as I proceed with Ymy gspecica'tion. f L

In the drawingmfl Y( v Fig. l1 is a perspective view of a chair seat and ,associated back rest supporting structure embodying my invention. i

Fig. 2 is a viewinside elevation on an en- 'flarged scale, of thek seat, and bottomend of the back rest supporti-ng arm, together with the brace and means *for adjustably securing the same to the chair seat. f Y f Fig. 3 is a transverse vertical detail sec-Vy tionalV view -on a further enlarged Vscaleras taken on the line of Fig. 2

Fig. 4 is a view similar to Fig. 'with the parte? a. Ollallgdpglaton'f- .y

A Y y Fig, 5 isa perspective view' of a; certain ieee.y vserial' No.` aeskgolo.

-it is deep is concaved at its mid portion from 'front to rear and issliownherein as mounted upon a centrally disposed seat post 2 by means of'a spider'. To the bottom `surface o'eacli side margin of the seat is secured an angle Vbar including a horizontal'flangell and a devpending vertical iange. The Harige 4 is sesecured to theseat margin by'means 'of bolts 6 in a manner disposing the outer aceof the vertical flange substantially in the planeof the edgesof said seat margin. Said'vertic'al flange 5, begins at its rear end substantially flush with the rear edge of the seat and terminatesat its frontv enda distance spaced from the front edge "ofthe seat as best shown in Figgi2f In said 'verticafl'ange is provi-dedy f, `lOl-'10 indicates a pair'of back rest sup! porting arms, one disposedat each side of the chair. Each arm ismade ofstrap metal and in the bottom end of each arm isa 'pluralityy kot longitudinally spaced holes 11-11 the deysired'one of which may be registered with `a like hole in therear end of the associated ver` tical flange 5 to receivea pivot boltor screw l2. The topportionofeach arm is yoisetrinwardly to pivotally receive between them, a back rest member 18. In this respectit fis pointed Aout that the .back rest jarm `may be yraised and'lowered andmay be swung forwardly or rearwardlyto accurately adjust the back rest into thedesired position-with Y respect to the seat. 1 14-14 indicates the back rest armA braces, with oneassociated-with each arm. V*Each brace is made ofV flat strap-metal,*s1ightly l vcurvedV in the plane Vof its edgesand one end i of each `-arm ispivotallyconnected` as at 15 to the assceatedarin l0. n The other end et said,

be described.

16 indicates a runner member, in the formy 5 of a plate of substantially L shaped cross section which includes a body 17 with a bottom flange or lip 18-t-hatextends slightly'upwardly to have a wedging action as will later appear. This member is of a length greater than @Height which height approximates the distance between the planes ofthe straight bottom edge of slot 7 and the underside of the angle bar flange 4. In the body 17 midway between its ends and adjacent the flange on the lip 18 is a threaded openin'g'i19`to receive screw 20 for connecting the bottom end of the brace bar 14 to the runner member. It is herein pointed out that the screw 20 is of a diameter to fit in any of the recesses Sat one side of the slot 7 and that distance between the straight edge ofthe slot and the bottom of the projections 9 approximates said diameter. n

u Whenthe runner member 16 is in place, it occupies aposition on the inner side of the 5.1. w. 5 and when the screw 20 is drawn up snug and occupies one of the notches 8, the top ed e of the runner 164 substantially engegest underside of the flange fand the lip 18 en ages upon said bottom straight edge of sglot all as best shown in Fig. 3f 'Ilo adjust the position of the arms 10, th screw A20 associated with; each arm brace is loosened but not withdrawnk from. the runnm:A so kthat the lip thereof may be removed fromlthe yassociated slot 7 as shown' in Fig. 4 which` brings the screw 2O into` engagement with the bottom of the slot so* that it can be mmvedthere along intoa position in linewith the desired recess 8; The screw l20 is then tightened up andv inthis manipulation ofthe screw, the runner is raised or elevated and the beveled lip thereofl will enter the slot and force the screw home into said 'desired recess so that the adjacentprojections act as shoulders,.preventing further movement of the screw itudinally of the slot. u us the screw does not need to be re` moved a d replaced but only need be loosened 59 sqthatt ie time required to adjust the posi# gli Aof the back rest ismaterially reduced.

e, partsare few in number,easy to manipulatel and. areV efliclcnt for` their intended pur ese. f

sa: bile in describing the invention, I have end to said arm, means providing a flan e along one side of said seat having a longitu inal slot therein, a member longitudinally adjustable with respect to one side of said flange and having a beveled portion to engage a part of said slot and a screw operatively connecting the other end of the brace to said member.

2. A chair embodying therein, a seat, a back rest supportingy arm pivoted' withl respect to one end of the seat, af brace pivoted at one end to said arm, means providing a flange along one side of said seat having longitudinal slot thereinwith recesses disposed in one side of said slot`,'a member disposed on the inner side of said flange and longitudinally adjustable with respect thereto, which member has a beveled portion cooperating with the other side of said slot and a screw operatively connecting the other end of'said brace withk said member and being actuatedl by said member in the tightening of the screw to force said screw into one of said recesses; AK

f 8. A chair embodying therein a seat, an angle bar fixed to the bottom of said seat along one side thereof and includnga depending flange wit-h a longitudinal slot therein having spaced recesses along its top edge, av back rest arm pivoted to the rear end-of said flange, a brace pivoted at one-end tosaid arm, a plate disposed on the inner side ei' said n flange and including a lip to engage vthe bottom edge of said slot and a screw operatively connecting the other end of the brace with said plate.

4. In a chair, means providing a flange with a longitudinal slot therein, having spaced recesses in its top edge, a back rest arm pivoted to the rear endof said flange, a brace pivoted at one and to saidvarmya plate longittudinally adjustable with `respect to said flange andhafvin abeveled lip along. its bot tom to: engage t e bottom of the- Slot and. a screw operatively connecting'the other end of said brace and plate member and so operating u-pon said platel in the tightening up of the screw as to force said screw into one of said recesses. l f y In testimony whereof, I have hereunto set my hand, this 17th dayy Yof May, 1929.-

f EVAN C. HARTEB.

referred kin detail to the form, arrangement 4` @construct-ion of the various parts thereof, thelsame 1s to considercdmerely as ill-ustrative yso that I do not wish tol be limited thereto except as may be specificallyset forth inthe appended claims. f my invention f L Ach-w @ma nest vsupporting' arm pivoted with-respect to ane end of the seat,- a brace piveted at ene g therein, a seat,- a back ti s 

